EV Tires for 17" or 20" wheels

[Dorbiman]

I'm new to EVs, we've only had our ID.4 for about two weeks. I'm looking to see what EV tires are available for the Slate in both the stock 17" or 20" wheel sizes, and I'm not finding many in either. Have yall found much?

I see that Pirelli makes the Scorpion ATR but not in the 265/55R20 that I think the Maker shows for the 20's, and I haven't found decent tires in the stock 245/65R17s either. I was planning on going with the 20s since it looks like there might be a bit better variety of EV tires. I definitely want to capitalize on the efficiency gains of a tire designed for EVs.

 

[skidoofast]

I'm new to EVs, we've only had our ID.4 for about two weeks. I'm looking to see what EV tires are available for the Slate in both the stock 17" or 20" wheel sizes, and I'm not finding many in either. Have yall found much?

I see that Pirelli makes the Scorpion ATR but not in the 265/55R20 that I think the Maker shows for the 20's, and I haven't found decent tires in the stock 245/65R17s either. I was planning on going with the 20s since it looks like there might be a bit better variety of EV tires. I definitely want to capitalize on the efficiency gains of a tire designed for EVs.

sorry for my lack of understanding, like many I’ll be new to the ev world

why would you need special tires for this EV, it’s 3,600 lbs which is the weight of a Subaru outback

I understand for other EVs, the rivian r1t is 7,200 lbs which would need a higher load range

 

[Dorbiman]

lowering rolling resistance for one. It’s to maximize efficiency. I believe most EV rangle ratings are established using the OE tires, which the Slate maker shows to be EV rated tires. I know the ID4 (which is admittedly heavier) has big efficiency losses when switching to standard tires. Some people are reporting drops from 3.5 mi/kWh down to 2.5 when switching from the stock Alenzas to CrossClimate2’s

 

[skidoofast]

lowering rolling resistance for one. It’s to maximize efficiency. I believe most EV rangle ratings are established using the OE tires, which the Slate maker shows to be EV rated tires. I know the ID4 (which is admittedly heavier) has big efficiency losses when switching to standard tires. Some people are reporting drops from 3.5 mi/kWh down to 2.5 when switching from the stock Alenzas to CrossClimate2’s

Thank you, I’ll have to educate myself

one of my thoughts was to possibly get a narrower tire on a second set of rims to see what that does for efficiency or electrons per mile 🤣🤣🤣

 

[metroshot]

Thank you, I’ll have to educate myself

one of my thoughts was to possibly get a narrower tire on a second set of rims to see what that does for efficiency or electrons per mile 🤣🤣🤣

Narrow tires will help with range for sure.
If you live in cold snow weather, it's best to get a second set of wheels w/ winter rated tires.

EVs not only uses LRR (low rolling resistance) tires, they are also rated for heavier weight ratings.
Tire shops will also switch you over to "Eco focus" and "EV tuned" tires which also hikes the prices.

My Ford EV uses XL load rated tires so the choices for LRR, EV range extending tires become very narrow and expensive where I am now looking....

To add more pain, getting a set of: non EV rated, non LRR, RFT to replace out my stock OEM tires to avoid having to pull over is not only expensive, but will hurt the range a lot.

$1200 for my next set of RFT (Run Flat Tires) for my Ford EV:

 

[moondawg]

lowering rolling resistance for one. It’s to maximize efficiency. I believe most EV rangle ratings are established using the OE tires, which the Slate maker shows to be EV rated tires. I know the ID4 (which is admittedly heavier) has big efficiency losses when switching to standard tires. Some people are reporting drops from 3.5 mi/kWh down to 2.5 when switching from the stock Alenzas to CrossClimate2’s

I'll add to this that it can be very easy to drive an EV in a way that will wear tires faster than you are used to. I also have an ID.4, and the lower center of gravity (relative to an ICE car) will have you cornering much faster than you will realize. The ID.4 can cruise a tight interstate curve at 70 firmly planted, while my Jetta is a white-knuckle experience at 60.

While I have a hard time accepting data that indicates a 30% drop in efficiency due to non-LRR tires, they do make a difference. Important to note that the actual diameter of tires of different brands can vary quite a bit even with identical numbers on the sidewall. So I would take "n=1" samples with a grain of salt. Anyone switching tires should measure the diameter (mark the tire and the ground, drive ten revolutions, mark the ground. measure the distance between the marks and divide by 10) to get a really good comparison on efficiency.